Ruby begonia

It resembled a begonia flower - the red petals being represented by a large ruby, and the stem and leaves by a platinum setting. The Queen of Apocrypha instructed Tannen the Barbarian to retrieve this object for her. He, along with Doc and Marty, found it in the enchanted tower, and returned it to the queen. Jules Brown, noticing that the leaves were platinum - a substance instrumental for the repair of the flux capacitor - asked if he could have one of the leaves, a request that the queen granted. As such, part of the ruby begonia was used in the successful repair of the Jules Verne Train's flux capacitor.